The "Iron Man 2" footage at Comic-Con seemed to pose as many questions as it answered, so here's a quick recap of everything we do know about one of the most-anticipated films for comic book movie fans:

THE VILLAINS: Sam Rockwell and Mickey Rourke make their debuts as Justin Hammer and Ivan Vanko (a.k.a. Whiplash), respectively, in "Iron Man 2," and Rockwell hinted during Comic-Con at a team-up between the two characters.